Amanda has a piece of ribbon that is 1/4 yards long she wants to share the ribbon with two friends so that they can each wear ribbon for breast cancer awareness month if each of the three friends get the same amount how much ribbon will each person get

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Which expression is equal to (f+g)(x)?